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      <title>ResultMap和ResultType的区别，一对多怎么写 - 交互式测验</title>
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    <body>
      <div class="main-wrapper">
          <div class="quiz-container">
            <div class="quiz-header">
              <h1>ResultMap和ResultType的区别，一对多怎么写 - 交互式测验</h1>
              <p>检验你对文档内容的理解程度</p>
            </div>
            <div id="quiz-content">
                <div class="quiz-body">
                    <div class="progress-bar">
                        <div id="progress-indicator"></div>
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                    <div id="question-container">
                      <p id="question-text"></p>
                      <ul class="options-list" id="options-list"></ul>
                    </div>
                    <div id="result-container"></div>
                    <div id="hint-container" class="hint-container"></div>
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                <div class="quiz-footer" id="quiz-footer">
                  <button id="prev-btn" class="nav-btn">上一题</button>
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      <script>
        const quizData = [
  {
    "question": "根据文档，在选择使用 `ResultMap` 还是 `ResultType` 时，最主要的考虑因素是什么？",
    "options": [
      "Java对象的字段数量，字段多时必须使用 `ResultMap`。",
      "查询场景的复杂性，`ResultMap` 适用于复杂查询，而 `ResultType` 适用于简单查询。",
      "数据库的类型，因为某些数据库只支持 `ResultType`。",
      "SQL查询的执行性能，因为 `ResultType` 通常比 `ResultMap` 更快。"
    ],
    "correctAnswerIndex": 1,
    "explanation": "文档的核心思想是根据场景的复杂性来做选择。`ResultMap` 提供了处理复杂映射（如列名与属性名不一致、多表连接、嵌套结果）的灵活性，而 `ResultType` 则以其简洁性适用于列名与属性名能自动匹配的简单查询场景。",
    "source": "文档总结部分：\"ResultMap适用于复杂的查询场景...而ResultType适用于简单的查询场景...\"",
    "hint": "文档在总结部分直接对比了两者的适用场景，这是选择的关键。"
  },
  {
    "question": "在MyBatis中，如果数据库表的列名（例如 `user_name`）与Java实体类的属性名（例如 `userName`）不完全一致，或者需要处理一对多等复杂关联关系时，应该使用哪种映射方式？",
    "options": [
      "`ResultType`，因为它会自动进行驼峰命名转换。",
      "`ResultMap`，因为它提供了灵活的映射规则来处理列名与属性名的对应以及复杂的关联关系。",
      "只能通过修改Java实体类的属性名来使其与列名完全一致。",
      "`ResultMap` 和 `ResultType` 都可以，只需在SQL中使用别名即可。"
    ],
    "correctAnswerIndex": 1,
    "explanation": "`ResultMap` 的设计初衷就是为了解决复杂的映射问题。它允许你显式地定义数据库列与Java对象属性之间的对应关系，并且通过 `<collection>`、`<association>` 等标签处理复杂的对象图（如一对一、一对多关系）。",
    "source": "文档中「ResultMap」部分",
    "hint": "哪种方式被文档描述为“灵活的映射方式”并且能处理“多表联合查询”？"
  },
  {
    "question": "关于 `ResultType` 的特性，以下哪项描述是正确的？",
    "options": [
      "它支持通过`<association>`和`<collection>`标签来配置复杂的嵌套查询。",
      "它可以被多个查询语句重用，以提高代码复用性。",
      "它是一种简单的映射方式，适用于单表查询等简单场景。",
      "它必须通过XML文件进行详细的列-属性映射配置。"
    ],
    "correctAnswerIndex": 2,
    "explanation": "文档明确指出，`ResultType` 是一种简单的映射方式，适用于单表查询等简单场景。它的主要特点是便捷，但牺牲了灵活性和可重用性。复杂关联和重用是 `ResultMap` 的特性。",
    "source": "文档中「ResultType」部分",
    "hint": "文档将 `ResultType` 定位为一种“简单”的映射方式，适用于什么场景？"
  },
  {
    "question": "根据文档，`ResultMap` 相对于 `ResultType` 在代码维护方面的一个显著优势是什么？",
    "options": [
      "`ResultMap` 的配置比 `ResultType` 更简单，减少了维护成本。",
      "`ResultMap` 能够自动适应数据库表结构的变化，无需手动修改。",
      "`ResultMap` 不需要指定Java对象的完整类名，使得代码更灵活。",
      "`ResultMap` 可以被定义一次并在多个不同的查询中重用，提高了代码的可维护性和复用性。"
    ],
    "correctAnswerIndex": 3,
    "explanation": "文档中明确提到了 `ResultMap` 的可重用性是其一大优点。通过给 `resultMap` 定义一个唯一的 `id`，可以在项目的任何Mapper查询中通过 `resultMap` 属性引用它，避免了重复定义相同的映射逻辑，极大地提升了代码的复用性和可维护性。而 `ResultType` 每次使用都需要指定，无法共享映射逻辑。",
    "source": "文档中「ResultMap」部分",
    "hint": "当多个查询返回相同结构的复杂对象时，哪种方式可以避免重复定义映射规则？"
  },
  {
    "question": "在文档提供的XML示例中，`<result column=\"password\" property=\"pw\"/>` 这行配置实现了什么功能？",
    "options": [
      "声明一个名为 \"pw\" 的新属性，其类型与 \"password\" 列相同。",
      "这是一个密码加密配置，表示 \"password\" 列需要经过 \"pw\" 算法处理。",
      "将查询结果中名为 \"password\" 的列的值，映射到Java对象中名为 \"pw\" 的属性上。",
      "为 \"password\" 列设置一个别名 \"pw\"，以便在Java代码中调用。"
    ],
    "correctAnswerIndex": 2,
    "explanation": "这是 `ResultMap` 核心功能的直接体现，即手动建立数据库结果集的列（column）与Java对象的属性（property）之间的映射关系。这对于数据库字段命名规范与Java属性命名规范不一致的情况非常有用。",
    "source": "文档中的XML代码示例部分",
    "hint": "请注意 `column` 和 `property` 这两个XML属性各自代表的含义。"
  },
  {
    "question": "文档的XML示例代码展示了 `ResultMap` 的强大功能。其中，用于处理“一对多”（one-to-many）关系的标签是哪个？",
    "options": [
      "`<association>`",
      "`<id>`",
      "`<collection>`",
      "`<result>`"
    ],
    "correctAnswerIndex": 2,
    "explanation": "在MyBatis的 `ResultMap` 中，`<collection>` 标签专门用于处理一对多关系。它会将多行的结果映射到一个集合（如List）类型的属性中。示例中的注释 `<!-- 对多-->` 也明确指出了其用途。`<association>` 则用于处理一对一关系。",
    "source": "文档中的XML代码示例部分",
    "hint": "XML示例中的注释明确指出了处理“对多”关系的标签。"
  },
  {
    "question": "尽管 `ResultMap` 和 `ResultType` 在使用方式和适用场景上有很大不同，但它们的共同目标是什么？",
    "options": [
      "定义SQL查询的动态条件。",
      "将SQL执行后产生的结果集数据，封装到指定的Java实体类对象中。",
      "优化SQL查询的执行效率。",
      "管理数据库连接和事务。"
    ],
    "correctAnswerIndex": 1,
    "explanation": "无论是简单的 `ResultType` 还是复杂的 `ResultMap`，它们的根本目的都是充当数据库结果集（ResultSet）和Java对象（POJO）之间的桥梁。MyBatis通过这两种方式，将关系型数据自动转换（封装）为开发者更易于处理的对象模型。",
    "source": "文档中「相同点」部分",
    "hint": "文档中的“相同点”部分直接阐述了它们的共同作用。"
  }
];
        console.log("Quiz Data:", JSON.parse(JSON.stringify(quizData))); // 添加这行用于调试，以可展开的JSON格式输出
        
        let currentQuestionIndex = 0;
        let score = 0;
        // 存储每个问题的回答状态
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        const optionsListEl = document.getElementById('options-list');
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        const quizContentEl = document.getElementById('quiz-content');
        const progressIndicatorEl = document.getElementById('progress-indicator');
        const prevBtn = document.getElementById('prev-btn');
        const nextBtn = document.getElementById('next-btn');
        const hintBtn = document.getElementById('hint-btn');
        const hintContainerEl = document.getElementById('hint-container');

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          optionsListEl.innerHTML = '';
          hintContainerEl.style.display = 'none'; // 隐藏提示
          
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            showFinalScore();
            return;
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            li.textContent = optionText;
            li.dataset.index = index; // Store index in a data attribute
            // 如果这道题已经回答过，恢复状态
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                    li.classList.add('selected');
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          updateNavigationButtons();
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        function selectOption(optionIndex) {
            userAnswers[currentQuestionIndex] = optionIndex;
            const currentQuestion = quizData[currentQuestionIndex];
            const isCorrect = optionIndex === currentQuestion.correctAnswerIndex;

            // 重新计算分数
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                return answer === quizData[index].correctAnswerIndex ? acc + 1 : acc;
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            showResult(isCorrect, currentQuestion);
            updateNavigationButtons();
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            nextBtn.style.display = 'block';
            hintBtn.style.display = 'block'; // 显示提示按钮

            prevBtn.disabled = currentQuestionIndex === 0;
            nextBtn.disabled = false; // 最后一题时，下一题按钮不禁用，而是用于显示报告
            nextBtn.textContent = (currentQuestionIndex === quizData.length - 1) ? '查看报告' : '下一题';
            
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                hintBtn.disabled = true;
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                hintBtn.disabled = false;
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            resultContainerEl.innerHTML = ''; // 清空之前的结果
            const resultBox = document.createElement('div');
            resultBox.className = `result-box ${isCorrect ? 'correct' : 'incorrect'}`;
            
            let html = `<h3>${isCorrect ? '回答正确！' : '回答错误'}</h3>`;
            if (!isCorrect) {
                html += `<p><strong>正确答案是：</strong> ${questionData.options[questionData.correctAnswerIndex]}</p>`;
            }
            html += `<div class="explanation-text">${questionData.explanation}</div>`;
            html += `<div class="source-text">来源: ${questionData.source}</div>`;
            
            resultBox.innerHTML = html;
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                child.style.pointerEvents = 'none';
                // 高亮正确答案
                if (index === questionData.correctAnswerIndex) {
                    child.classList.add('correct'); // 需要添加CSS样式
                    child.style.backgroundColor = '#d4edda';
                    child.style.borderColor = '#c3e6cb';
                }
                // 如果选错了，高亮错误选项
                if (!isCorrect && index === userAnswers[currentQuestionIndex]) {
                    child.classList.add('incorrect'); // 需要添加CSS样式
                    child.style.backgroundColor = '#f8d7da';
                    child.style.borderColor = '#f5c6cb';
                }
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        }

        function goToNextQuestion() {
            if (currentQuestionIndex < quizData.length - 1) {
                currentQuestionIndex++;
                loadQuestion();
            } else {
                showFinalScore();
            }
        }

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            if (currentQuestionIndex > 0) {
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                loadQuestion();
            }
        }
        
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            const currentQuestion = quizData[currentQuestionIndex];
            if (currentQuestion.hint) {
                hintContainerEl.textContent = currentQuestion.hint;
                hintContainerEl.style.display = 'block';
            } else {
                hintContainerEl.style.display = 'none';
            }
        }

        function showFinalScore() {
            document.querySelector('.quiz-body').style.display = 'none';
            document.getElementById('quiz-footer').style.display = 'none';

            const correctCount = score;
            const totalQuestions = quizData.length;
            const answeredCount = userAnswers.filter(a => a !== null).length;
            const wrongCount = answeredCount - correctCount;
            const skippedCount = totalQuestions - answeredCount;
            const accuracy = totalQuestions > 0 ? Math.round((correctCount / totalQuestions) * 100) : 0;
            const errorRate = totalQuestions > 0 ? Math.round((wrongCount / totalQuestions) * 100) : 0;

            const finalScoreHtml =
                '<div class="final-score-container">' +
                '<h2>答题报告</h2>' +
                '<div class="score-summary">' +
                '<div class="score-card">' +
                '<h3>得分</h3>' +
                '<p>' + correctCount + ' / ' + totalQuestions + '</p>' +
                '</div>' +
                '<div class="score-card">' +
                '<h3>正确率</h3>' +
                '<p>' + accuracy + '%</p>' +
                '</div>' +
                '<div class="score-card">' +
                '<h3>错误率</h3>' +
                '<p>' + errorRate + '%</p>' +
                '</div>' +
                '<div class="score-card score-details">' +
                '<table>' +
                '<tr><td>正确</td><td>' + correctCount + '</td></tr>' +
                '<tr><td>错误</td><td>' + wrongCount + '</td></tr>' +
                '<tr><td>未答</td><td>' + skippedCount + '</td></tr>' +
                '</table>' +
                '</div>' +
                '</div>' +
                '<div class="report-actions">' +
                '<button id="review-btn">回顾测验</button>' +
                '<button class="primary" onclick="location.reload()">再试一次</button>' +
                '</div>' +
                '</div>';

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                reportEl.remove();
            }
            quizContentEl.insertAdjacentHTML('beforeend', finalScoreHtml);
            document.getElementById('review-btn').addEventListener('click', reviewQuiz);
        }

        function reviewQuiz() {
            const reportEl = document.querySelector('.final-score-container');
            if (reportEl) {
                reportEl.remove();
            }

            document.querySelector('.quiz-body').style.display = 'block';
            document.getElementById('quiz-footer').style.display = 'flex';
            
            currentQuestionIndex = 0;
            loadQuestion();
            updateNavigationButtons(); // Ensure nav buttons are correctly displayed
        }

        // Event Delegation for options
        optionsListEl.addEventListener('click', (event) => {
            if (event.target && event.target.matches('li.option-item')) {
                // Check if the question has already been answered
                if (userAnswers[currentQuestionIndex] === null) {
                    const selectedIndex = parseInt(event.target.dataset.index, 10);
                    selectOption(selectedIndex);
                }
            }
        });

        prevBtn.addEventListener('click', goToPreviousQuestion);
        nextBtn.addEventListener('click', goToNextQuestion);
        hintBtn.addEventListener('click', showHint);
        
        // 初始加载
        loadQuestion();
      </script>
    </body>
    </html>
  